Alt is a surname. Notable people with the surname include:
Albrecht Alt (1883–1956), German bible scholar and Protestant theologian Carol Alt (born 1960), American model and actress Don Alt (1916–1988), American politician and businessman Ernst Alt, German Roman Catholic priest and exorcist Helmut Alt, German computer scientist Franz Alt (mathematician) (1910–2011), Austrian-born American mathematician Franz Alt (painter) (1821–1914), Austrian painter, brother of Rudolf J. Kenji López-Alt, American chef and food writer Jakob Alt (1789–1872), Austrian painter, father of painters Franz and Rudolf Joe Alt (born 2003), American football player John Alt (born 1962), German-American football player Mark Alt (born 1991), American ice hockey player Renata Alt (born 1965), German politician Rudolf von Alt (1812–1905), Austrian painter Salome Alt (1568–1633), Austrian wife of Wolf Dietrich (von) Raitenau Susanne Alt (born 1978), German female saxophonist
See also
Ant (name)